The fruit tree whitening agent is a preparation in which the main layer of the fruit tree and the base of the main branch are whitened by mixing with lime, vegetable oil, salt and the like as a main component, and the whitening agent is different according to the function and the purpose of whitening. And it is divided into many kinds. In the production of fruit trees, different types of whitening agents can be configured according to actual needs, which can achieve targeted results with half the effort.
1. Kill the germs. The quicklime and salt components in the whitening agent have the function of sterilization and disinfection, and can eliminate various kinds of pathogens which are overwintering at the base of the trunk. When the white coating is added, the addition of the positive microbial agent can accelerate the wound healing.
2, kill eggs. Many eggs seem to be in the bark gap and inside the trunk of the trunk and the beetle and so on to dry over the winter, white can effectively eliminate these eggs.
3. Control pests. Pests that harm fruit trees generally prefer dark, dirty places. They don't like white, clean places. When the white coat of white is painted white, the pests don't dare to climb along the trunk to the tree.
4. Prevent livestock. After the trunk is painted white, it can also prevent the animal from biting the bark.
5. Prevent freezing damage. After entering the winter and the Spring of the next year, the temperature difference between day and night is large. By whitening, you can reflect enough sunlight and ultraviolet rays during the day to reduce the temperature difference between the base and the night of the trunk to avoid freezing damage. The white-painted trees tend to delay the germination and flowering of the trees because of the slower temperature accumulation at the base of the trunk, which can avoid the frost damage caused by the "cold spring".
6, to prevent sunburn. After the trunk is painted white, it can reflect the bright sunshine and ultraviolet rays during the day, which can effectively reduce the occurrence of sunburn hazards.
7, beautify the scenery. The white height of the trunk is neat and uniform, beautifying the orchard, and illuminating the scenery, giving people a refreshing vision.
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(Source: Good Agricultural Resources Network)
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